Both of them are very good, particularly the niacinamide in them -- I just wish they listed the concentrations. If I remember correctly niacinamide is typically in concentrations of around 4% from talking to my derm a while back, but it'd be a good idea to ask the company how much is in the products.

The main difference between the two moisturizers is the AM version has more humectants, while the PM version has more emollients (skin-softeners).

Hmm, that's a lot of unpronounceable chemicals there ! I'm not sure on all the ingredients but there's a few that's on the list of things to avoid/harmful chemicals. Sodium Hydroxide is classed as a strong skin irritant, so I'd consider that before you buy it It should be ok if you don't have sensitive skin though. personally I think natural products are best but if that's not your thing then I'd go ahead and give that moisturiser a try.